MESON Chess Problem Database

Problem Display
PID: 181069 (6N1/6Bb/4p1n1/3k4/KQ2pp2/4p3/8/8 w - - 0 1)

Genttner, Jaroslav

Narodni listy, 1904

6N1/6Bb/4p1n1/3k4/KQ2pp2/4p3/8/8

#2

4 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sh4
      • 2.Se7#
    • 1...Se5
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
    • 1...Sf8
      • 2.Se7#
    • 1...Sh8
      • 2.Se7#
  • Tries
    • 1.Kb5?
      • threat
        • 2.Qc5#
        • 2.Qd4#
      • 1...Se5
        • 2.Sf6#
        • 2.Se7#
        • 2.Qc5#
      • 1...e5!
    • 1.Sf6+?
      • 1...Ke5
        • 2.Qc5#
      • 1...Kc6!
    • 1.Qd6+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Kxd6!
  • Keys
    • 1.Be5!
      • threat
        • 2.Qb5#
      • 1...Kxe5
        • 2.Qc5#
      • 1...Kc6
        • 2.Qb5#
      • 1...Sxe5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(f);N_GUARD::S(D)
    • S(f);N_GUARD::S(D),XS(f)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • P(e);
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR2(B)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(d);P-FLIGHT,XQ(B)
  • Actual
    • B(C);
    • Threat
      • QAR2(B)
    • Vars
      • K(d);P-FLIGHT,XB(C)::QAR2(B)
      • K(d);S_FLIGHT::QAB1(B)
      • S(f);N_GUARD,SBLOCK,XB(C)::S(D)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).